------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
5.15.156-syzkaller #0 Not tainted
------------------------------------------------------
syz-fuzzer/3497 is trying to acquire lock:
ffffffff8c7fc358 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
but task is already holding lock:
ffff8880b9b28098 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x772/0xeb0 kernel/time/timer.c:1043
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&base->lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
lock_timer_base+0x120/0x260 kernel/time/timer.c:946
__mod_timer+0x1d6/0xeb0 kernel/time/timer.c:1019
queue_delayed_work_on+0x156/0x250 kernel/workqueue.c:1715
psi_enqueue kernel/sched/stats.h:104 [inline]
enqueue_task+0x2fe/0x3a0 kernel/sched/core.c:1973
activate_task kernel/sched/core.c:2005 [inline]
wake_up_new_task+0x515/0xb60 kernel/sched/core.c:4522
kernel_clone+0x44e/0x960 kernel/fork.c:2628
kernel_thread+0x168/0x1e0 kernel/fork.c:2656
rest_init+0x21/0x330 init/main.c:704
start_kernel+0x48c/0x540 init/main.c:1138
secondary_startup_64_no_verify+0xb1/0xbb
-> #2 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
_raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:368
raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
raw_spin_rq_lock kernel/sched/sched.h:1326 [inline]
rq_lock kernel/sched/sched.h:1621 [inline]
task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11480
sched_cgroup_fork+0x2d3/0x330 kernel/sched/core.c:4466
copy_process+0x224a/0x3ef0 kernel/fork.c:2320
kernel_clone+0x210/0x960 kernel/fork.c:2604
kernel_thread+0x168/0x1e0 kernel/fork.c:2656
rest_init+0x21/0x330 init/main.c:704
start_kernel+0x48c/0x540 init/main.c:1138
secondary_startup_64_no_verify+0xb1/0xbb
-> #1 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
try_to_wake_up+0xae/0x1300 kernel/sched/core.c:4030
up+0x6e/0x90 kernel/locking/semaphore.c:190
__up_console_sem+0x11a/0x1e0 kernel/printk/printk.c:256
console_unlock+0x1145/0x12b0 kernel/printk/printk.c:2760
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
_printk+0xd1/0x120 kernel/printk/printk.c:2299
br_set_state+0x35b/0x610 net/bridge/br_stp.c:51
br_stp_disable_port+0x74/0x1c0 net/bridge/br_stp_if.c:106
del_nbp+0x176/0xbb0 net/bridge/br_if.c:334
br_dev_delete+0x68/0x100 net/bridge/br_if.c:377
default_device_exit_batch+0x2ef/0x3f0 net/core/dev.c:11621
ops_exit_list net/core/net_namespace.c:174 [inline]
cleanup_net+0x763/0xb60 net/core/net_namespace.c:596
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
-> #0 ((console_sem).lock){-.-.}-{2:2}:
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
__down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
console_trylock kernel/printk/printk.c:2575 [inline]
console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:566
copy_from_user_nofault+0x15c/0x1c0
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_078a3568a35342ea+0x38/0x498
bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
trace_timer_start include/trace/events/timer.h:52 [inline]
enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
internal_add_timer kernel/time/timer.c:611 [inline]
__mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
sk_reset_timer+0x1f/0xb0 net/core/sock.c:3136
tcp_rcv_established+0x135b/0x1e20 net/ipv4/tcp_input.c:5954
tcp_v4_do_rcv+0x423/0x960 net/ipv4/tcp_ipv4.c:1727
tcp_v4_rcv+0x2740/0x2d80 net/ipv4/tcp_ipv4.c:2130
ip_protocol_deliver_rcu+0x381/0x730 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x1db/0x320 net/ipv4/ip_input.c:231
NF_HOOK+0x364/0x410 include/linux/netfilter.h:302
dst_input include/net/dst.h:453 [inline]
ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline]
ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline]
ip_sublist_rcv+0xb0f/0xe50 net/ipv4/ip_input.c:636
ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:671
__netif_receive_skb_list_ptype net/core/dev.c:5528 [inline]
__netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5576
__netif_receive_skb_list net/core/dev.c:5628 [inline]
netif_receive_skb_list_internal+0x9ed/0xdf0 net/core/dev.c:5719
gro_normal_list net/core/dev.c:5873 [inline]
napi_complete_done+0x352/0x820 net/core/dev.c:6611
virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
virtnet_poll+0xbef/0x1270 drivers/net/virtio_net.c:1592
__napi_poll+0xc7/0x440 net/core/dev.c:7035
napi_poll net/core/dev.c:7102 [inline]
net_rx_action+0x617/0xda0 net/core/dev.c:7192
__do_softirq+0x3b3/0x93a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
hrtimer_start_expires include/linux/hrtimer.h:434 [inline]
hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1966 [inline]
do_nanosleep+0x164/0x7b0 kernel/time/hrtimer.c:2042
hrtimer_nanosleep+0x24d/0x490 kernel/time/hrtimer.c:2098
__do_sys_nanosleep kernel/time/hrtimer.c:2133 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:2119 [inline]
__x64_sys_nanosleep+0x265/0x2c0 kernel/time/hrtimer.c:2119
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &rq->__lock --> &base->lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&base->lock);
lock(&rq->__lock);
lock(&base->lock);
lock((console_sem).lock);
*** DEADLOCK ***
5 locks held by syz-fuzzer/3497:
#0: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30 include/linux/rcupdate.h:312
#1: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
#2: ffff888020a90ca0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x26aa/0x2d80 net/ipv4/tcp_ipv4.c:2124
#3: ffff8880b9b28098 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x772/0xeb0 kernel/time/timer.c:1043
#4: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
stack backtrace:
CPU: 1 PID: 3497 Comm: syz-fuzzer Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
__down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
console_trylock kernel/printk/printk.c:2575 [inline]
console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:566
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 db d7 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c4 d7 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dcfb88 EFLAGS: 00010046
RAX: ffffffff81aa851c RBX: 0000000000000000 RCX: ffff888079ec0000
RDX: 0000000080000104 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa842d R09: fffffbfff1f7ec19
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc90000dcfbe8
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_078a3568a35342ea+0x38/0x498
bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
trace_timer_start include/trace/events/timer.h:52 [inline]
enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
internal_add_timer kernel/time/timer.c:611 [inline]
__mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
sk_reset_timer+0x1f/0xb0 net/core/sock.c:3136
tcp_rcv_established+0x135b/0x1e20 net/ipv4/tcp_input.c:5954
tcp_v4_do_rcv+0x423/0x960 net/ipv4/tcp_ipv4.c:1727
tcp_v4_rcv+0x2740/0x2d80 net/ipv4/tcp_ipv4.c:2130
ip_protocol_deliver_rcu+0x381/0x730 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x1db/0x320 net/ipv4/ip_input.c:231
NF_HOOK+0x364/0x410 include/linux/netfilter.h:302
dst_input include/net/dst.h:453 [inline]
ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline]
ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline]
ip_sublist_rcv+0xb0f/0xe50 net/ipv4/ip_input.c:636
ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:671
__netif_receive_skb_list_ptype net/core/dev.c:5528 [inline]
__netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5576
__netif_receive_skb_list net/core/dev.c:5628 [inline]
netif_receive_skb_list_internal+0x9ed/0xdf0 net/core/dev.c:5719
gro_normal_list net/core/dev.c:5873 [inline]
napi_complete_done+0x352/0x820 net/core/dev.c:6611
virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
virtnet_poll+0xbef/0x1270 drivers/net/virtio_net.c:1592
__napi_poll+0xc7/0x440 net/core/dev.c:7035
napi_poll net/core/dev.c:7102 [inline]
net_rx_action+0x617/0xda0 net/core/dev.c:7192
__do_softirq+0x3b3/0x93a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 02 05 a3 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 37 45 30 f7 65 8b 05 08 53 db 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900024e7ba0 EFLAGS: 00000206
RAX: 8865c36dc95e9b00 RBX: 1ffff9200049cf78 RCX: ffffffff913edf03
RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: 0000000000000001
RBP: ffffc900024e7c30 R08: ffffffff8186dd10 R09: ffffed1017365441
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200049cf74 R14: ffffc900024e7bc0 R15: 0000000000000246
hrtimer_start_expires include/linux/hrtimer.h:434 [inline]
hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1966 [inline]
do_nanosleep+0x164/0x7b0 kernel/time/hrtimer.c:2042
hrtimer_nanosleep+0x24d/0x490 kernel/time/hrtimer.c:2098
__do_sys_nanosleep kernel/time/hrtimer.c:2133 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:2119 [inline]
__x64_sys_nanosleep+0x265/0x2c0 kernel/time/hrtimer.c:2119
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x472757
Code: 8b 44 24 20 b9 40 42 0f 00 f7 f1 48 89 04 24 b8 e8 03 00 00 f7 e2 48 89 44 24 08 48 89 e7 be 00 00 00 00 b8 23 00 00 00 0f 05 <48> 83 c4 10 5d c3 cc cc cc b8 ba 00 00 00 0f 05 89 44 24 08 c3 cc
RSP: 002b:000000c000069f18 EFLAGS: 00000202 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 0000000000472757
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000c000069f18
RBP: 000000c000069f28 R08: 00000000000011d4 R09: 0000000000000010
R10: 00007fff72b90080 R11: 0000000000000202 R12: 000000c000069f18
R13: 000000c0000ed800 R14: 000000c0000064e0 R15: 0000000000000005
WARNING: CPU: 1 PID: 3497 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 3497 Comm: syz-fuzzer Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 db d7 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c4 d7 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dcfb88 EFLAGS: 00010046
RAX: ffffffff81aa851c RBX: 0000000000000000 RCX: ffff888079ec0000
RDX: 0000000080000104 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa842d R09: fffffbfff1f7ec19
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc90000dcfbe8
FS: 000000c000058090(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e722000 CR3: 000000002575d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_078a3568a35342ea+0x38/0x498
bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
trace_timer_start include/trace/events/timer.h:52 [inline]
enqueue_timer+0x3ae/0x540 kernel/time/timer.c:586
internal_add_timer kernel/time/timer.c:611 [inline]
__mod_timer+0xa60/0xeb0 kernel/time/timer.c:1062
sk_reset_timer+0x1f/0xb0 net/core/sock.c:3136
tcp_rcv_established+0x135b/0x1e20 net/ipv4/tcp_input.c:5954
tcp_v4_do_rcv+0x423/0x960 net/ipv4/tcp_ipv4.c:1727
tcp_v4_rcv+0x2740/0x2d80 net/ipv4/tcp_ipv4.c:2130
ip_protocol_deliver_rcu+0x381/0x730 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x1db/0x320 net/ipv4/ip_input.c:231
NF_HOOK+0x364/0x410 include/linux/netfilter.h:302
dst_input include/net/dst.h:453 [inline]
ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline]
ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline]
ip_sublist_rcv+0xb0f/0xe50 net/ipv4/ip_input.c:636
ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:671
__netif_receive_skb_list_ptype net/core/dev.c:5528 [inline]
__netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5576
__netif_receive_skb_list net/core/dev.c:5628 [inline]
netif_receive_skb_list_internal+0x9ed/0xdf0 net/core/dev.c:5719
gro_normal_list net/core/dev.c:5873 [inline]
napi_complete_done+0x352/0x820 net/core/dev.c:6611
virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
virtnet_poll+0xbef/0x1270 drivers/net/virtio_net.c:1592
__napi_poll+0xc7/0x440 net/core/dev.c:7035
napi_poll net/core/dev.c:7102 [inline]
net_rx_action+0x617/0xda0 net/core/dev.c:7192
__do_softirq+0x3b3/0x93a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 02 05 a3 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 37 45 30 f7 65 8b 05 08 53 db 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900024e7ba0 EFLAGS: 00000206
RAX: 8865c36dc95e9b00 RBX: 1ffff9200049cf78 RCX: ffffffff913edf03
RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: 0000000000000001
RBP: ffffc900024e7c30 R08: ffffffff8186dd10 R09: ffffed1017365441
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200049cf74 R14: ffffc900024e7bc0 R15: 0000000000000246
hrtimer_start_expires include/linux/hrtimer.h:434 [inline]
hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1966 [inline]
do_nanosleep+0x164/0x7b0 kernel/time/hrtimer.c:2042
hrtimer_nanosleep+0x24d/0x490 kernel/time/hrtimer.c:2098
__do_sys_nanosleep kernel/time/hrtimer.c:2133 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:2119 [inline]
__x64_sys_nanosleep+0x265/0x2c0 kernel/time/hrtimer.c:2119
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x472757
Code: 8b 44 24 20 b9 40 42 0f 00 f7 f1 48 89 04 24 b8 e8 03 00 00 f7 e2 48 89 44 24 08 48 89 e7 be 00 00 00 00 b8 23 00 00 00 0f 05 <48> 83 c4 10 5d c3 cc cc cc b8 ba 00 00 00 0f 05 89 44 24 08 c3 cc
RSP: 002b:000000c000069f18 EFLAGS: 00000202 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 0000000000472757
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000c000069f18
RBP: 000000c000069f28 R08: 00000000000011d4 R09: 0000000000000010
R10: 00007fff72b90080 R11: 0000000000000202 R12: 000000c000069f18
R13: 000000c0000ed800 R14: 000000c0000064e0 R15: 0000000000000005
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 02 05 a3 f7 call 0xf7a30516
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 4e jne 0x69
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 37 45 30 f7 call 0xf7304566 <-- trapping instruction
2f: 65 8b 05 08 53 db 75 mov %gs:0x75db5308(%rip),%eax # 0x75db533e
36: 85 c0 test %eax,%eax
38: 74 3f je 0x79
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss